| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 나노 구조물의 합성, 분석 및 응용(국제심포지움) |
| 제목 |
Ferroelectric Nanoisland Array Fabricated by Blockcopolymer Self-Assembly |
| 초록 |
PbTiO3 (PTO) nanoisland array was fabricated by a simple method based on block copolymer micelles. PTO precursor was encapsulated within poly(4-vinylpyridine) block of polystyeren-b-poly(4-vinylpyridine) copolymer micelles. The micelle solution was spin-coated on a single crystalline Nb-doped SrTiO3 to form monolayer of micelles. Both block copolymer thin film was removed and PTO islands were epitaxially crystallized under atmospheric environment at 600℃. Epitaxial relationship between the substrate and PTO islands was analyzed by X-ray diffraction (XRD) and ferroelectric behavior was observed by piezoresponse force microscopy (PFM). The average diameter and height of each PTO nanoisland are ~30 nm and 6nm, respectively. Each nanoisland exhibited a distinct ferroelectric property with the polarization axis aligned normal to the substrate. |
| 저자 |
김영석1, 김진곤1, 한희1, 백성기1, 김윤석2, Marin Alexe2
|
| 소속 |
1포항공대, 2Max Planck Institute |
| 키워드 |
block copolymer self-assembly; ferroelectrics
|
| E-Mail |
|
